How you can make smarter decisions

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Accentuate the positive but don’t eliminate the negative, avoid wasting time, get plenty of sleep and limit Facebook use

1 Take experts off their pedestals Did you know that studies have shown that doctors misdiagnose one time in six? That rubbish collectors make better economic predictions than finance ministers? Or that when a team of professional investment advisers was pitted against Orlando, a ginger tom cat, Orlando made a return three times greater than that of the experts?

2 Beware online consumer reviews Up to a third are fake. Online reviewers have a tendency to herd — if they see others give a five-star rating, they are likely to do so themselves.